Thread (13 messages) 13 messages, 4 authors, 2017-03-01

Re: [PATCH V3 0/4] PCI: exynos: use the PHY generic framework

From: Jaehoon Chung <jh80.chung@samsung.com>
Date: 2017-02-15 22:33:22
Also in: linux-pci, linux-samsung-soc, lkml

Dear Bjorn,

On 02/16/2017 06:11 AM, Bjorn Helgaas wrote:
On Mon, Feb 13, 2017 at 05:26:09PM +0900, Jaehoon Chung wrote:
quoted
This patcheset is for using PHY generic framework.
Current pci-exyns doesn't use the phy framework since there haven't been on
PHY subsystem when Exynos5440 had bean upstreamed.
It's making a difficult to upstream the other Exynos variants because of different
PHY registers.

This patcheset has the below modifications:
1) Introduces the phy-exynos-pcie
2) Handles PHY register from PHY framework for pci-exynos
3) Modifies the dt-binding of pci-exynos
4) Maintains the backward compatibility

Changelog on V3:
- Drops "ARM: dts: exynos5440: support the phy-pcie node of pcie"
  : Will send this patch after applying this patchset.
- Fixes typo
- Based on latest PCI git repository (host-exynos branch)
- Changes commit message
- Removes the dependency

Changelog on V2:
- Keep current codes for backward compatibility
- Fixes some typos
- Split the patches for removing the dependency
- Removes the unnecessary codes
- Change the patch's sequence
- Based on latest PCI git repository.(next branch)

Jaehoon Chung (4):
  Documetation: samsung-phy: add the exynos-pcie-phy binding
  phy: phy-exynos-pcie: Add support for Exynos PCIe phy
  Documetation: binding: modify the exynos5440 pcie binding
  PCI: exynos: support the using PHY generic framework

 .../bindings/pci/samsung,exynos5440-pcie.txt       |  29 +++
 .../devicetree/bindings/phy/samsung-phy.txt        |  17 ++
 drivers/pci/host/pci-exynos.c                      |  54 +++-
 drivers/phy/Kconfig                                |   8 +
 drivers/phy/Makefile                               |   1 +
 drivers/phy/phy-exynos-pcie.c                      | 285 +++++++++++++++++++++
 6 files changed, 390 insertions(+), 4 deletions(-)
 create mode 100644 drivers/phy/phy-exynos-pcie.c
I made the updates Vivek suggested and provisionally added these to my
pci/host-exynos branch to get some build testing.
Thanks!
Kishon, I guess it probably makes more sense for me to apply this
because even though the drivers/pci changes are small, I think they
depend on other pci-exynos.c changes that are on my branch but not in
Linus' tree yet.
I will send the patches relevant to Exynos5433(TM2) soon..
Thanks a lot.

Best Regards,
Jaehoon Chung
Bjorn

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